docs: def get_arg_type_descriptors(self):
          """
          The parameter type descriptor list for a method, or None for a
          field.  Type descriptors are shorthand identifiers for the
          builtin java types.
          """
  
          if not self.is_method:
              return tuple()
  
          tp = _typeseq(self.get_descriptor())
          tp = _typeseq(tp[0][1:-1])
  
          return tp